Answer: True
Humans have impacted the rainforests through mining, agriculture and construction as rainforests are mainly occupied with large forests trees and vegetation. Human clear cut the forests to make the land available for the purpose of mining to derive economically valuable minerals from earth, construction of house and for agriculture. This has resulted in the extinction of large number of floral and faunal species from earth. It has decreased the percentage of forest cover on earth.
According to the question, it is true that Humans have impacted the rainforests through mining, agriculture, and construction.
How human impacted the rainforests through mining
Gemstones and Precious metals such as gold, copper, diamond are important resources that can be found in the rainforests across the world. Extracting these resources is harmful activities that contribute lot of damages to the rainforests ecosystem. It causes problem for the people that live close to the rainforests. Chemical pollution and deforestation from mining can have a great adverse effect on the rainforests environment. It also affects downstream aquatic habit.
How human impacted the rainforests through Agriculture
In the rainforests, large areas are cleared for pastoral farming because the demand of meat globally has increased the opening of cattle farms in the rainforests and this also cause deforestation which has adverse effect on the rainforests. Arable farming also contribute to the loss of tropical rainforests as many farmers are clearing the land to grow crops such as soya beans.
How human impacted the rainforests through Constructions
Road building has different of direct impacts on the rainforests. In most wet tropical rainforest, the cut and fill operation related with road construction can prevent easy flow of streams, increase flooding in the forest and can drastically increases erosion in rainforests. Construction of roads in the rainforest can discharge nutrients and chemical pollutant into water ways and create avenue of invasion for disturbing exotic species.
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B) Models are too complex to be used by the average person; so they are limited by who can use them.
C) Models are testable ideas created by the human mind to tell stories about what happens in nature.
D) Models are approximations or a sum of a real system that omits all but most essential variables of a system.
Answer:
The correct answer will be option-B.
Explanation:
Scientific models are the simplified visual representations of the complex ideas, object or a system.
The scientific models play a central role in the science as they are used in the research based on the predictions to prove or reject the hypothesis as well provides a good medium of explanation of a complex process.
Since the models are very simple representations of the complex process which can be used and understand easily by a layman, therefore, Option-B is the correct answer.
Answer;
A. myofibrillar proteins in muscle.
Explanation;
Myofibrils are composed of long proteins including actin, myosin, and titin, and other proteins that hold them together.
These proteins are organized into thick and thin filaments called myofilaments, which repeat along the length of the myofibril in sections called sarcomeres.
Myofibrils are bundles of very fine fibers that almost fill the sarcoplasm of a muscle cell, while, Myofilaments (or filaments) are ultramicroscopic, thread-like structures found in myofibrils. In other words, the myofilaments are bundled together to make a myofibril.
B. ±15 percentage points
C. ±9 percentage points
D. ±12 percentage points
Answer:
The error ranges would be the most reliable with a study, all else being equal is:
Option: A is correct.
A. ±6 percentage point.
Step-by-step explanation:
The error range such that the error range is most reliable in the study is:
±6 percentage points.
( Since for the solution to be most reliable the error must be small so that the value is close to the actual value and hence the study is reliable)
±6 percentage points is referred to the error ranges would be the mostreliable with a study, all else being equal.
These are range of values in which an error occurs if specified data fall within it and the lower the value the less the error.
The lowest value is ±6 percentage points which is option A thereby making it the most appropriate choice.
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energy
other organisms
light
Answer: D
Explanation:
Vaccines cause an immune response to a virus, while antibiotics seek out and kill bacteria cells.